22074691 has 4 divisors (see below), whose sum is σ = 22404232. Its totient is φ = 21745152.

The previous prime is 22074643. The next prime is 22074719. The reversal of 22074691 is 19647022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19647022 = 2 ⋅9823511.

It is a cyclic number.

It is not a de Polignac number, because 22074691 - 2¹⁷ = 21943619 is a prime.

It is a pancake number, because a pancake can be divided into 22074691 parts by 6644 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22074491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164670 + ... + 164803.

It is an arithmetic number, because the mean of its divisors is an integer number (5601058).

Almost surely, 2^22074691 is an apocalyptic number.

22074691 is a deficient number, since it is larger than the sum of its proper divisors (329541).

22074691 is an equidigital number, since it uses as much as digits as its factorization.

22074691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329540.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 22074691 is about 4698.3711007114. The cubic root of 22074691 is about 280.5206765791.

The spelling of 22074691 in words is "twenty-two million, seventy-four thousand, six hundred ninety-one".